Electrical socket



Oct. 27, 1931. M, M. ADLEMAN 1,829,207

ELECTRICAL SOCKET Filed Aug. 22, 1930 s 5/ I W 1 1, St- 5? 9 7 H\ w lzgjmizb 5 EM am; r7163 I77 vefifor Patented st. 27, 193i untrue. STATES PATENT crates.

MARTIN I11. ALDLEIEAN, OF PUTNrYtI, CONNECTICUT ELECTRICAL SOCKET Application filed August 22 both an electric socket and a plug; to enable a facile assemblage and disassemblage of the constituent parts; toinsure that the assembled parts shall be air tight, water tight, and steam tight, and resistant to extreme pressure; and to attain these ends in a compact and inexpensive structureadaptable to successful and varied application and use both I in air and under water.

To the above ends essentially my invention consists in such parts and in such combinations of parts as fall within the scope of the appended claims.

In the accompanying drawings which form part of this specification,

Figure 1 is a side elevation of my novel electrical socket mounted in a wall or partition, including a fragmentary showing of an electric lamp or heating unit mounted in the socket,

Figure 2, a central longitudinal section of the same,

Figure 3, an end elevation of my device,

Figure 4, a. section taken on line l4 of Figure 2, and

Figure 5, an enlarged fragmentary longitudinal section of a portion of my device.

Like reference characters indicate like parts throughout the views.

My device includes a porcelain core comprising cylindrical shank portion ll and diametrically enlarged or head portion 12, forming in conjunction with the shank portion a resultant shoulder 13. A detachable metallic attaching sleeve 16 is mounted on the core shank as a sliding fit, and is provided upon its forward and rear portions with exterior threads 17 and 18 respectively, and with a centrally disposed annularly arranged polygonal shoulder 19 for the application of a wrench located inter-' mediate the threads. The attaching thread 17 is adapted to engage a thread 21 in a hole 22 in the wall 23 of a house, tank, or any other structure in which it is desired or convenient to mount my device. A clamping 1930. Serial No. 476,982.

cap 25 rotatable on the core head 12, and enclosing the same, has circular opening 26 in its relatively closed end forming a resultant retaining flange 28, and is provided with an interior screw thread 30 engaging the thread 18. By turning the cap the surce 13 of the core head is drawn into tight engagement with the rear end of the sleeve Extending longitudinally through, and embedded or otherwise fixed in, the core 10 are two spaced electricalconduction rods or tires 33 and 3% extending a sliding lit through holes in a circular disk 8? of fiber or other insulating material. The latter is of greater diameter than that of the core shank 11 against whose forward end it abuts, and abuts also against the forward end of the sleeve 16. The rods extend loosely through perforations 39 in the base 40 of a conducting shell. ll of usual. socket constructionabutting against the disk, and whose screw thread side wall 13 is adapted to engage the usual threaded base l5 of an electric lamp or of a'heating unit of any usual or, preferred construction.

The forward end portions of the members 33 and 3% are of reduced diameter and are provided with threads l? to receive nuts 49 located within the shell 41. By tightening these nuts the described assembled parts are still more intimately engaged.

A contact plate 51 provided with perforation 52 for the passage of the threaded end of the member 33 is engaged by the nut on the latter and rests upon a rectangular lug 54 integral with the dish passing through an opening 55 in the base of the shell 41f The metallic contact plate is further insulated from the shell base by a strip 57 of insulating material behind the contact 51 provided with a perforation 58 to allow passage of the member 33 therethrough.

The rear ends of the members 33 and 34, in this instance, project beyond the core 10 to admit a socket plug of usual construction electrically connected through its cords with a source of electrical supply. This means of electrically connecting the rear ends of the members 33 and 3a to asource of electrical supply, while novel and preferred, is not exclusive. V

' It will be-observed thatby applying a Wrench to the shoulder 19 the attaching sleeve 6 is readily screwed into any opening located in a base, partition, panel or the like; that the sleeve 16, clamping cap 25, and

merel I for illustrative ur oses one saecific core l1ead'12 cooperate to insure an air and Water tight device; that the device is resistant to extreme pressure; that fewand simple constituent "parts may be employed and quickly assembled wherebythe cost of my device is reduced to aminimum.

While I have herein shown and described embodiment of my inventiom and haveidisclosed and discussed in detail the construction and arrangement incidental to such'disclosure, it is to be distinctly understood-that the inventionis limited neither to thefmere details or relative arrangement of parts nor to the specific application shown, but that ex: tensive variations from the illustrations may be made without departing from the principles thereof. v 1 o ,I claim r 1 In an article 'of the character described,

an insulating core, a metal attaching sleeve surroundinq a oortion of the core a clam ing cap detachablyjengaging the sleeve and surrounding one end of the core, electricalconduction rods fast in the core longitudinally disposedjtherein, and a conduction shell supportedunonthe other end of the core.

2. In an article of thecharacter described, a core ofinsulating material, a metallicsleeve surrounding a portion of the core'provided with an exterior attaching thread, a clampfinn' can rovided withan o enin in its outer L i .2:

end detachably engaging the sleeve and en-' 1 closing one end of the core, electrical conduc- 7 tion rods fixed 1n the core and extending lone gitudinally therethrough, "and a conduction saellinsulated from the rods adjacent the other end of the core. V

3. ln an article of the character described, a core ofinsulating material comprisinga sh auk and head, an attaching sleeve surroundprojecting beyond the forward end of the core, 'a conduction shell upon the projecting ends of the rods, and a disk of insulating material upon the rods intermediate the shell and core.

5. In an article ofthe character described, 7

a metallic sleeve provided with an exterior attaching "thread in its forward portion, a clamping cap detachably mounted upon the rear end of the sleeve including an opening in its relatively closed end, a core of insulating material comprising a shank in the sleeve, and a head in the cap, electrical conductionrods extending longitudinally through the core with their rear ends projecting through the holes and perforations into the shell and provided with threads upon theirvforward ends,

and nuts upon the threads withintheshell.

In testimony whereof I have 'affixed my signature' MAn'r MLAD EMA 7 ing theshank and abutting against the head provided with anexterior attaching thread andwith an exterior thread upon its rear end, a clamping cap enclosing the head and pro vided with a thread engaging the second mentioned'thread, interspaced conduction rods eX- tending longitudinally through the core, and a conduction shell supported by the rods adjacent the end of the core shank;

4-. In an article of the character described, a metallic attaching sleeve provided with an exterior thread uponits rear end, a clamping cap provided with a thread engagingthe first thread, a core of insulating material compris-- ing a shank detachably mounted in the sleeve 7 a head in the cap abutting against the attaching sleeve; conduction rods in the core 

